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Presentation

Abstract

INTRODUCTION: Maximal oxygen consumption (VO2max) is the maximum capacity of the body to transport and utilize oxygen during incremental exercise. The relative units are expressed as milliliters of oxygen per kilogram of body weight per minute (ml/kg/min) and the absolute rate is liters of oxygen per minute (L/min). Body Fat percentage is the total mass of fat divided by the total body mass, and multiplied by 100%. It is expressed as a percent value. Research shows that athletes tend to have a lower body fat percentage and a higher VO 2maxas compared to non athletes. PURPOSE: The purpose of this study was to evaluate the VO 2max values of male athletes vs non-athletes and assess body fat percentage. METHODS: Nine male UTA students volunteered to participate in this study,four tennis athletes (M; age 20.5 ±1.5 yrs)and five non-athletes (M; 23±2.4 yrs). Each subject had body fat percentage assessed using the BOD POD. Each subject performed a graded exercise test on the treadmill, using the Bruce protocol, with increasing speed and elevation until exhaustion. During each test heart rate (HR) and rate of perceived exertion (RPE) were recorded along with the VO 2values that were measured by the metabolic cart.The alpha level for significance was set at p<0.05. RESULTS: The results for height and weight for athletes were 184.66 ±4.70 cm and 84.73±6.68 kg, respectively. For non athletes height and weight were 181.36 ±6.30 cm and 95.48±24.02 kg, respectively. The VO2max for athletes was 57.35 ± 1.93ml/kg/min and 40.45 ± 8.93ml/kg/min in the non-athletic group which resulted in a significant difference (p< 0.03). The body fat percentage in athletes was 11.9 ± 2.63%and 27.5± 7.82%in the non-athletic group which also resulted in a significant difference (p= 0.021). There was a negative correlation between VO2maxand body fat percentage (r = - 0.61) for the athletic group and (r = -0.96) for the non-athletes group. The time on the treadmill of the athlete group was 15.07 ±1.02 min, and non-athletes 0.96±2.07min was significantly different(p= 0.017) as well as the maximal HR: athletes (191.75±5.25 bpm) and non-athletes (192±5.6 bpm; p= 0.37) and RPE: athletes (19±0.5) and non-athletes (17.6±0.72; p= 0.045). CONCLUSION: The results of this study indicate that athletes have a higher VO 2max than non-athletes, which agrees with published research. Body fat percentage was lower in athletes than non-athletes. The inverse correlation between the two variables also agrees with published research. The VO 2maxdifferences may be attributed to the amount of exercise training, and percent body fat.

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Kinesiology | Life Sciences

Publication Date

12-1-2018

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